Home / 170,989.47-256,488.59-81,011.12

Finding the Fourth Proportional to 170,989.47, 256,488.59 and 81,011.12

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Solution

The fourth proportional to 170,989.47, 256,488.59 and 81,011.12 is: 121,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,989.47 : 256,488.59 = 81,011.12 : x
  2. Step 2: Convert to fraction form
    170,989.47/256,488.59 = 81,011.12/x
  3. Step 3: Cross multiply
    170,989.47x = 256,488.59 × 81,011.12
  4. Step 4: Simplify right side
    170,989.47x = 20,778,426,255.62
  5. Step 5: Solve for x
    x = 20,778,426,255.62/170,989.47
  6. Step 6: Final answer
    x = 121,518.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.